Opm::Accelerator::rocalutionSolverBackend< block_size > Class Template Reference

#include <rocalutionSolverBackend.hpp>

Inheritance diagram for Opm::Accelerator::rocalutionSolverBackend< block_size >:

Public Member Functions
	rocalutionSolverBackend (int linear_solver_verbosity, int maxit, double tolerance)
	~rocalutionSolverBackend ()
	Destroy a rocalutionSolver, and free memory. More...
SolverStatus	solve_system (std::shared_ptr< BlockedMatrix > matrix, double *b, std::shared_ptr< BlockedMatrix > jacMatrix, WellContributions &wellContribs, BdaResult &res) override
void	get_result (double *x) override

Detailed Description

template<unsigned int block_size>
class Opm::Accelerator::rocalutionSolverBackend< block_size >

This class implements a rocalution based linear solver solver on GPU It uses ilu0-bicgstab

Constructor & Destructor Documentation

rocalutionSolverBackend()

template<unsigned int block_size>

Opm::Accelerator::rocalutionSolverBackend< block_size >::rocalutionSolverBackend	(	int	linear_solver_verbosity,
		int	maxit,
		double	tolerance
	)

Construct a rocalutionSolver also initialize rocalution library and rocalution variables

Parameters

[in]	linear_solver_verbosity	verbosity of rocalutionSolver
[in]	maxit	maximum number of iterations for rocalutionSolver
[in]	tolerance	required relative tolerance for rocalutionSolver

~rocalutionSolverBackend()

template<unsigned int block_size>

Opm::Accelerator::rocalutionSolverBackend< block_size >::~rocalutionSolverBackend

(

)

Destroy a rocalutionSolver, and free memory.

Member Function Documentation

get_result()

template<unsigned int block_size>

void Opm::Accelerator::rocalutionSolverBackend< block_size >::get_result ( double *  x )

overridevirtual

Get result after linear solve, and peform postprocessing if necessary

Parameters

[in,out]

x

resulting x vector, caller must guarantee that x points to a valid array

Implements Opm::Accelerator::BdaSolver< block_size >.

solve_system()

template<unsigned int block_size>

SolverStatus Opm::Accelerator::rocalutionSolverBackend< block_size >::solve_system ( std::shared_ptr< BlockedMatrix >  matrix, double *  b, std::shared_ptr< BlockedMatrix >  jacMatrix, WellContributions &  wellContribs, BdaResult &  res  )

overridevirtual

Solve linear system, A*x = b, matrix A must be in blocked-CSR format

Parameters

[in]	matrix	matrix A
[in]	b	input vector, contains N values
[in]	jacMatrix	matrix for preconditioner
[in]	wellContribs	WellContributions, to apply them separately, instead of adding them to matrix A
[in,out]	res	summary of solver result

Returns

status code

Implements Opm::Accelerator::BdaSolver< block_size >.

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The documentation for this class was generated from the following file:

• rocalutionSolverBackend.hpp